What is happening to my phone?

A

AC Question

This started a few moments ago - my phone started randomly flashing this odd, green colored screen while using Snapchat. I figured it as the just the app, then moved over to Facebook. The same thing started happening. So I rebooted my phone.
Upon starting back up, there was no display on the screen for quite a while (the touchscreen did work).
Upon getting into my phone again, I open Facebook again.
Then my phone's screen was looking weird for a few moments - random, almost glitchy looks, and changes in brightness without me adjusting it - and then the screen turned a light green and then stopped displaying images altogether. The touch screen is still responsive, however. I had to take the battery out to turn it off. What should I do?
 

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